Wisconsin Central Airlines Annual Report 1949
MLA
Wisconsin Central Airlines, Inc.. "Wisconsin Central Airlines Annual Report 1949." Delta Flight Museum. 1950-03-20, https://dlg.galileo.usg.edu/do:delta_nca-ar_nca-ar-1949.
APA
Wisconsin Central Airlines, Inc. (1950-03-20). Wisconsin Central Airlines Annual Report 1949. Retrieved from https://dlg.galileo.usg.edu/do:delta_nca-ar_nca-ar-1949
Chicago
Wisconsin Central Airlines, Inc.. "Wisconsin Central Airlines Annual Report 1949." 1950-03-20. May 20, 2025. https://dlg.galileo.usg.edu/do:delta_nca-ar_nca-ar-1949.
